Improvement in apparatus for injecting preservative liquids into wood



4IINITED STATES vWILLIAM H. SMYTH, OF STEUBENVILLE, OHIO.

Specification forming part of Letters Patent No. 111,784, dated Februaryl! 1R71.

To all whom it may concern:

Beit known that I, WILLIAM H. SMYTH, of Steubenville, in the county ofJefferson and State of Ohio, have invented a new and useful Iain provein ent in Apparatus for Oh argin g Wood with. Preserving Liquids; andI do hereby declare that the following' is a full, clear, and exactdescription th ereof, which will en able oth ers skilled in the art tomake and use the same, reference being had tothe accompanyingdrawing,forming part of this speeieation.

This invention relates to improvements in apparatus for forcingpreserving liquids into 20nd, and it consists in a combination of' anair-pump, liquid-receptacle, and compressioncha-mber, and an attachingdevice for connectlon to the wood or to a tank, adapted for theemployment ot' compressed air or other equivalent gasesl for forcing theliquids in, all as hereinafter described.

The drawing is a sectional elevation of apparatus such as I propose t0use.

A is the vessel for holding the liquid B t0 be forced into the wood,yalso the compressed air or gas to be used for forcing it. This vessel1s provided with a supply-pipe, D, having a stop-cock, E, for closingit, also with an airpump, F, for condensing the air, and also a tube, G,for conducting the liquid to the Wood to be charged 5 or it may leadinto a tank or closed chamber coutainin g the Wood. In ease the liquidis to be applied to individual pieces el" Wood the said tube terminatesin a cup, Il,

with a rim, I, reduced to a sha1-p edge, to be driven into the Wood atthe end 'to make such a connection therewith as will. prevent any escapeof the liquid. This cup may have dogs K, or other equivalent means, fordriving into the wood, to hold it against the tendency of the liquid toforce it oii'. This cup may also be used for attaching the apparatus toa tank.I if preferred. This mode of applying the liquid to the end ofthe timber is belier than to apply it to the side, for it enters andfollows the veins, which run lengthwise.

By means of a light portable nplnnatus 0i.' this kind any piece oftimber may be readily charged Where it lies Without the labor ot' m0ving it into a charging-tank, and the ties ot' arailroad may be chargedas they lie in the road, and the work mayT be done without obstructionwhile trains are running.

I-Iavin g thus described myinven tion, I claim as new and desiretosecure by Lett-ers Patent- The combination of a liquidfholder and air0r gas condensing chamber, an abr-pump, and an attaching cup, adaptedfor attaclnnent to a tank or the cnd of a piece el timber, for

charging the timber by the action ot' c01n pressed air or gas on thesaid liquid, rall substantially as described.

WILLIAM ll. SMYTH. fitnesses JAMES A. MCGURDY, GEO. P. FiLsoN.

